Night Drivers: South Street Under the FDR Closes Overnight Through Friday for Flood-Gate Work at Montgomery Street

If your night route runs along the Lower East Side waterfront, it changes at 9 p.m. South Street, the service road beneath the FDR Drive between Gouverneur Slip West and Montgomery Street in Two Bridges, closes overnight through Friday, November 13, under the Transportation Department's weekly traffic advisory for November 7 to 13, as reported in the traffic file read by this desk. The weeknight pattern runs 9 p.m. to 5 a.m., with the longer weekend window of 9 p.m. to 9 a.m. on the nights the advisory lists.

The work is flood protection, not road repair. Crews are installing and testing a flood gate at Montgomery Street — one moving part of the coastal-resiliency program hardening the East River edge of Lower Manhattan against the storm surge the neighborhood knows firsthand. Gates like this one only earn their keep on the worst night of a decade, which is why the testing happens on ordinary November nights instead.

For drivers, the detour discipline is the usual overnight kind: the FDR Drive itself, elevated above the closure, is not the road being closed — it is the surface street underneath it that goes dark, so waterfront trips, deliveries and late rides through Two Bridges need the parallel streets, and cyclists who use the service road should plan the same way. The advisory week also carries the bridge work this desk filed this morning — the Hutchinson River Bridge's one-way overnight closures and the Newtown Creek lane drops — making this a week when the city's night map rewards anyone who checks it before leaving.

The South Street closures end Friday night, November 13, per the advisory. Until then: after 9 p.m., the waterfront belongs to the flood-gate crews.